Aak Industry Co., Ltd

Based in China, Aak Industry Co., Ltd lists 220 active products across its catalogue. The company’s portfolio covers Industrial Valves & Gauges, Hydraulic Equipments, Springs, Blocks, Tiles & Slabs, Machined Components, Cooking Gas Stoves, Regulators & Burners, and Mechanical Seals. The catalogue contains numerous hydraulic valve items such as pressure valves, directional control valves, check valves, relief valves, needle valves and cartridge valves. Spring offerings include a Korean piano steel wire pressure spring. Additional entries mention sealing rings for hydraulic directional valves and various machined component blocks.

The hydraulic valve segment dominates the listing, with specific products like Hydraulic Synchronous Diverter Valves, Hydraulic Pressure Control Valve, Hydraulic Check Valve Types, and Hydraulic Valve Block. Several entries highlight performance features such as hardness above HRC 65, zero‑leakage design, and vibration mitigation for counterbalance valves. The company also references manifold blocks and flow control valves with flow rates specified at three drops per minute. Mechanical seal products are noted without further detail. The range reflects typical components used in mobile and stationary hydraulic systems.

Aak Industry’s catalogue enumerates a broad set of hydraulic components: pressure reducing valves, directional control valves, check valves, relief valves, needle valves, cartridge valves and manifold blocks. In the global market these items are commonly manufactured from forged carbon steel or stainless steel, with pressure ratings from 100 bar up to 350 bar and hardness levels between HRC 55 and HRC 65 to meet ISO 4413 fluid power standards. Typical dimensional tolerances follow ISO 286, and surface finishes are often specified in Ra ≤ 1.6 µm for sealing surfaces. Buyers also look for hydro‑static test certificates at the rated pressure and material test reports confirming compliance with ASTM A193 or equivalent. The spring entry refers to a Korean piano‑steel wire pressure spring, a product that usually meets ASTM A228 specifications, tensile strengths of 1 800 MPa and a spring index between 4 and 6. Blocks, tiles and slabs listed under the catalogue are generally ceramic or engineered stone, supplied in dimensions that conform to ISO 13006 for tiles. Mechanical seals, when supplied, are typically designed for rotary pumps and follow API 6D or ISO 4414 material criteria. The machined components category may include precision‑turned or milled parts that adhere to IT 10 - IT 9 surface roughness and dimensional tolerances of ±0.02 mm.